Lifeboat Foundation

One of the most fundamental tenets of modern physics is that in a perfect vacuum — a place entirely devoid of matter — no friction can possibly exist, because empty space cannot exert a force on objects travelling through it.

But despite the conventional wisdom, physicists in the UK discovered that a decaying atom travelling through a complete vacuum would experience a friction-like force, and now they’ve figured out how this reinforces — rather than breaks — Einstein’s theory of general relativity.

“We spent ages searching for the mistake in the calculation and spent even more time exploring other strange effects until we found this (rather simple) solution,” one of the team, Matthias Sonnleitner from the University of Glasgow told Lisa Zyga at Phys.org.

Continue reading “Physicists Have Detected a Friction-Like Force in a Perfect Vacuum” »

https://youtube.com/watch?v=5cMEJTnPq-I

(sth/T.L.) – Luxembourg’s government and Tokyo-based space lunar robotic exploration company ispace Inc. on Thursday signed a Memorandum of Understanding (MoU) in the context of the SpaceResources.lu initiative with focus on developing miniaturized technology to discover, map, and utilize resources on the Moon.

Japanese start-up ispace was created by Hakuto, a finalist team of Google’s prestigious innovation competition Google Lunar XPRIZE. The company already works together with the Luxembourg Institute of Science and Technology (LIST) and will continue to do so.

Continue reading “Space Mining: Luxembourg and lunar robotic company ispace shoot for the moon” »

At Quora, I occasionally play, “Ask the expert”. Several hundred of my Quora answers are linked here. Today, I was asked “How much of Bitcoin’s value is driven by speculation”. This is my answer…

This is a great question! While the value of any commodity is determined by supply and demand, speculation is one component of demand. Another is the unique utility value inherent in a product or process. This is sometimes called ‘intrinsic value’.

It’s ironic that when a high fraction of value is driven by speculation, short-term value becomes volatile and long-term value becomes less certain—and less likely to produce returns for those same speculators.

Editor’s Note: In the past few weeks, a significant spike in Bitcoin’s value and trading volume relates to a pending regulatory decision expected at the end of next week. This activity is certainly driven by speculation. But for this article, I am considering periods in which the demands of individual events are less clear.

Continue reading “What Fraction of Bitcoin Value is Driven by Speculators?” »

MIT physicists have created a new form of matter, a supersolid, which combines the properties of solids with those of superfluids.

By using lasers to manipulate a superfluid gas known as a Bose-Einstein condensate, the team was able to coax the condensate into a quantum phase of matter that has a rigid structure—like a solid—and can flow without viscosity—a key characteristic of a superfluid. Studies into this apparently contradictory phase of matter could yield deeper insights into superfluids and superconductors, which are important for improvements in technologies such as superconducting magnets and sensors, as well as efficient energy transport. The researchers report their results this week in the journal Nature.

“It is counterintuitive to have a material which combines superfluidity and solidity,” says team leader Wolfgang Ketterle, the John D. MacArthur Professor of Physics at MIT. “If your coffee was superfluid and you stirred it, it would continue to spin around forever.”

Continue reading “Researchers create new form of matter—supersolid is crystalline and superfluid at the same time” »

One thing is clear: the way in which we organize the economy and society will change fundamentally. We are experiencing the largest transformation since the end of the Second World War; after the automation of production and the creation of self-driving cars the automation of society is next. With this, society is at a crossroads, which promises great opportunities, but also considerable risks. If we take the wrong decisions it could threaten our greatest historical achievements.

We are in the middle of a technological upheaval that will transform the way society is organized. We must make the right decisions now.

• By Dirk Helbing, Bruno S. Frey, Gerd Gigerenzer, Ernst Hafen, Michael Hagner, Yvonne Hofstetter, Jeroen van den Hoven, Roberto V. Zicari, Andrej Zwitter on February 25, 2017

Computer researchers are betting they can take on the house after designing a new artificial intelligence program that has beat professional poker players.

Researchers from University of Alberta, Czech Technical University and Charles University in Prague developed the “DeepStack” program as a way to build artificial intelligence capable of playing a complex kind of poker. Creating an AI program that can win against a human player in a no-limit poker game has long been a goal of researchers due to the complexity of the game.

Michael Bowling, a professor in the Department of Computing Science in the University of Alberta, explained that computers have been able to win at “perfect” games such as chess or Go, in which all the information is available to both players, but that “imperfect” games like poker have been much harder to program for.

Continue reading “Poker-playing AI beats pros using ‘intuition,’ study finds” »

American space power stagnated under U.S. Air Force stewardship a long time ago. [1] Congress observed this situation nearly 25 years ago, as the epigraphs above indicate. However, nothing substantive was done to fix the problem.

This article recommends the creation of a U.S. Space Corps in the Department of the Air Force as an initial step to set American space power on a path to reach its full potential.

Ultimately, America’s national security interests in space will best be served when Congress creates an independent Space Corps, just as it created independent services for land, sea and air, uniting them under the Department of Defense.

Continue reading “America Needs a Space Corps” »

The cover features an AI interstellar probe, beautifully illustrated by concept artist Efflam Mercier. Here is the download link:

http://i4is.org/wp-content/uploads/2017/02/Principium_16_Feb_2017.pdf

This issue covers the following topics:

Continue reading “Our free interstellar magazine ‘Principium’ N°16 is out now!” »

In a paper prepared for NASA, Bezos says his Blue Origin space company could land a delivery vehicle on the moon by 2020.